Effects Of Temperature On The Development Of Low Permeability In Concretes PDF Download
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Author | : Hamdi Celik Ozyildirim |
Publisher | : |
Total Pages | : 32 |
Release | : 1998 |
Genre | : Concrete |
ISBN | : |
Download Effects of Temperature on the Development of Low Permeability in Concretes Book in PDF, ePub and Kindle
This study evaluated the effects of temperature on the strength and permeability of concretes containing pozzolans (fly ash and silica fume) and slag. Two test programs were conducted. In the first, one control and five experimental mixtures containing silica fume, fly ash, or slag were evaluated. In the second, one control and three experimental mixtures containing fly ash or slag at a higher water-cementitious material ratio (W/CM) than used in the first program were evaluated. Concretes cured at higher temperatures had higher strengths up to 28 days but lower strengths at 1 year. Permeability decreased with time. Increasing early curing temperatures enabled the achievement of lower long-term permeability for 6 months and beyond at 28 days. Concretes containing a pozzolan or slag had a lower long-term permeability than the control. Adding a pozzolan was more effective in reducing permeability than reducing the W/CM. At cold temperatures, if the specified properties are not achieved, the contractor should change the mix design and/or provide insulating blankets and/or external heat to ensure the desired product.
Author | : Hamdi Celik Ozyildirim |
Publisher | : |
Total Pages | : 7 |
Release | : 1995 |
Genre | : Concrete |
ISBN | : |
Download Effect of Temperature on the Development of Low Permeability in Concretes Book in PDF, ePub and Kindle
Author | : Tarun R. Naik |
Publisher | : ASTM International |
Total Pages | : 193 |
Release | : 1985 |
Genre | : Technology & Engineering |
ISBN | : 9780803104358 |
Download Temperature Effects on Concrete Book in PDF, ePub and Kindle
Author | : William A. Olson |
Publisher | : |
Total Pages | : 350 |
Release | : 1994 |
Genre | : Concrete |
ISBN | : |
Download Temperature Effects on the Permeability of High-performance Concrete Book in PDF, ePub and Kindle
Author | : Barzin Mobasher |
Publisher | : CRC Press |
Total Pages | : 473 |
Release | : 2011-09-20 |
Genre | : Technology & Engineering |
ISBN | : 1439806616 |
Download Mechanics of Fiber and Textile Reinforced Cement Composites Book in PDF, ePub and Kindle
Among all building materials, concrete is the most commonly used-and there is a staggering demand for it. However, as we strive to build taller structures with improved seismic resistance or durable pavement with an indefinite service life, we require materials with better performance than the conventional materials used today. Considering the enor
Author | : K.L. Scrivener |
Publisher | : CRC Press |
Total Pages | : 474 |
Release | : 1997-04-17 |
Genre | : Architecture |
ISBN | : 9780419215707 |
Download Mechanisms of Chemical Degradation of Cement-based Systems Book in PDF, ePub and Kindle
Deterioration of cement-based materials is a continuing problem, as it results in the substantial shortening of the lives of conventional concrete structures. The main costs result from poor performance and the need for early repair. With more advanced applications, where very long service lives are essential, such as the storage of nuclear waste, an understanding of the degradation processes in order to predict long term performance is very important. this book forms the proceedings of the latest Symposia at the Materials Research Society Autumn meeting in Boston.
Author | : |
Publisher | : |
Total Pages | : 332 |
Release | : 1994 |
Genre | : Highway engineering |
ISBN | : |
Download Highway Research Abstracts Book in PDF, ePub and Kindle
Author | : Tada-aki Tanabe |
Publisher | : CRC Press |
Total Pages | : 1552 |
Release | : 2008-09-01 |
Genre | : Technology & Engineering |
ISBN | : 0203882954 |
Download Creep, Shrinkage and Durability Mechanics of Concrete and Concrete Structures, Two Volume Set Book in PDF, ePub and Kindle
CREEP, SHRINKAGE AND DURABILITY MECHANICS OF CONCRETE AND CONCRETE STRUCTURES contains the keynote lectures, technical reports and contributed papers presented at the Eighth International Conference on Creep, Shrinkage and Durability of Concrete and Concrete Structures (CONCREEP8, Ise-shima, Japan, 30 September - 2 October 2008). The topics covered
Author | : |
Publisher | : |
Total Pages | : 216 |
Release | : 2005 |
Genre | : State government publications |
ISBN | : |
Download Virginia State Documents Book in PDF, ePub and Kindle
Author | : PL. Owens |
Publisher | : |
Total Pages | : 16 |
Release | : 1985 |
Genre | : Alkali-aggregate reaction |
ISBN | : |
Download Effect of Temperature Rise and Fall on the Strength and Permeability of Concrete Made With and Without Fly Ash Book in PDF, ePub and Kindle
The effect of temperature rise and fall on concrete at early ages is rarely measured. Concrete cured at elevated temperature has reduced strength at later ages. The changes that occur in the hydration products have been measured in terms of the amount of calcium hydroxide [Ca(OH)2] present. Since permeability is, to some degree, a function of the water/cement ratio and strength, the measurement of permeability was necessary. Concrete is more permeable after it has undergone a temperature cycle similar to that found in practice. The use of Class F fly ash can effectively reduce the permeability of heat-affected concrete.